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8. Level 3 Repair

8-1

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8-1.Block Diagram

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8-2

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8-2. PCB Diagrams (2010.12.22 Rev0.3)8-2-1. Top

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8-3

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8-3. LOGIC

8-3-1. Power On

Power switch on

NG

Check the currentconsumption>= 100mA?

DownloadNO

Check the U615

Check the clockC110 = 19.2Mhz ?

Check the initial operation

Check the clock generation circuit

Resolder OSC400

Check the PMICrelated to PS_HOLD

Change the battery

Yes

Yes

Yes

Yes

NO

NOC440(VREG_MSMC1)=1.2V?C439(VREG_MSMC2)=1.2V?C438(VREG_MSME)=1.8V?C410(VREG_MSMP)=2.6V?C411(VREG_MSMA)=2.6V?

Yes

NOCheck the clock atOSC400 = 32KHz ?

NOCheck the TP_PS_HOLD pin PS_HOL

D = 2.6V?

NOCheck the batteryvoltage

>= 3.45?

Yes

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8-4

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CIMP

604C

504R

804C

TAB_V

704C

904C

114R

524C

V7.2_1XRFR_GERV

2K6NI

3K1XL

4K1NI

5K2NI

6KTUOX

7KNIX

8K41TUO

9K3TUO

5J1TUO

6J2TUO

7JK23KLC

8J51TUO

9J7NI

1KCN

01K4TUO

11KCN

8H

DN

G

9HTUOFER

1J2XL

01J5NI

11J5TUO

2J

2D

NG

P

3J

1D

NG

P

4J1KCUB

01H6TUO

11H71TUO

2H2KCUB

3HDLOHRWP

4HTABTED

5HCN

6HCN

7HTESER_

3G

NIO

CV

4GCN

5GCN

6GCN

7GATADC2I

8G4KCUBNE

9GPBFER

1HCN

6FRWPFH

7FKLCC2I

8FONO_

9F7ONE

1G

AS

UB

V

01G61TUO

11G8NI

2GBSUEFAS

9E5ONE

1F

BS

UB

V

01FCN

11F91TUO

2FNIOXCT

3FTUOOXCT

4FCN

5F31ONE

11E81TUO

2E

BT

TA

B

3ELV

4E2NIXUM

5E1NIXUM

6E4TSET

7EQRI_

8ENORWP

4D2TES

5DTUOXUMA

6D3TSET

7D2ANI

8D1ANI

9D4ONE

1E

AT

TA

B

01ECN

7C2BNI

8C1BNI

9C

DN

GA

1DANIGHC

01DPNIXR

11DPTUO

2DBNIGHC

3D1TES

1C4XL

01

CD

NG

P1

1C

DD

VP

2C4BF

3C3BF

4C4NIXUM

5C3NIXUM

6C31BF

2B

3D

NG

P

3B9TUO

4B8TUO

5B7TUO

6B31TUO

7B

DD

V

8BSAIB

9B

SS

V

5A01TUO

6A4NI

7ARPH

8ALPH

9AN1C

1B3NI

01BNNIXR

11BNTUO

1CN

2CN

1ACN

01AP1C

11ACN

2A3XL

3A11TUO

4A9NI

2114R

516U

216U

104U

V8.1_NALWV

V3.3_BIV_GERV

TAB_V

904R

1

2

V0.3_DCLV

V3.3_NALWV

A_V3.3_BSU_GERV

V3.3_NALWV

004D

3

624C214C

V0.3_HCUOTV

V5_TEF_BSUV

004TAB

314C

334C

004R

234C

004C

434C

444C

824C

344C

V5_PVO_BSUV

V5_TEF_BSUV

014R

634C

034C

534C

134C

834C

V1.2_AP_GERV

V8.1_EMSM_GERV

734C

204L304L

V1.2_AP_GERV

V8.1_EMSM_GERV

724C

604R 704R

304R

804R

204R

924C

TUO_FER

M_V2.1_1CMSM_GERV

M_V2.1_2CMSM_GERV

V01

144C 244C

934C 044C

004L

V2.1_1CMSM_GERV

V2.1_2CMSM_GERV

104L

424C324C224C024C814C714C514C 614C414C 124C114C014C

004CSO

104R

V8.2_AMACV

V0.3_MISU_GERV

V6.2_TB_GERV V0.3_HSALFT_GERV

V6.2_PMSM_GERV

V6.2_AMSM_GERV

V2.1_EROC_MACV

V58.2_OXCT_GERV

V8.2_OI_MACV

404R

3XL4XL

NO_GIJ

DLOH_SPKLC_PEELS

L_KPS

L_RAER_RAE

R_KPS

R_KPSRAE

L_KPSRAE

OXCT_FFUBNE_OXCT

ADS_RWP

FV

N_TESER_NOP

TUOP_PMA

NE_OXCT

TUO_XUMA

N_TNI_MP

WS_NO

OXCT_M2.91KLCNE_NALW_DDV

NO_GIJ

LCS_RWP

TED_YEKNO

3XL

TUON_PMA

4XL

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8-7

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8-3-2. LCD Working

Power Switch On

LCD FPCBconnector is correctly connecti

ned?

Replace U503 & Checkneighboring circuits

Yes

NOYes

LCDReplace

U620LED_P_26V=26V?

F600, F601, F602,F603, F604, F605,

ResolderF600, F601,F602, F603,F604, F605,

Correctlymounted?

NO

correctly connect

NOLCD Display

On?

Yes

Yes

NO

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8-3-3. TSP

Operate TSP

NG

CheckTSP Connecting Reconnecting TSP

NO

YES

Change TSP Module

No Problem? Change main PBANO

END

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8-3-3. Audio Working

Speaker Working

Operate speaker

NG

CheckSpeaker Con.

SolderingResolder

NO

YES

Speaker breakdown?

YESChange Speaker

NO

Signal on inL510, L511?

ResolderL510,L511SPK ASSY

YES

NO

Signal on inC406, C407?

ResolderC406, C407

Replace U500

YES

NO

Change main PBA

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Level 3 Repair

8-13

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8-14

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Receiver Working

Operate Receiver

NG

CheckReceiver

ConnectorReconnect

NO

YES

Receiver breakdown?

YESChange Receiver

NO

Change main PBA

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8-16

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Main MIC Working

Operate MIC

NG

PolluteMIC Hole?

YESClean upMIC hole

NO

Remove MIC,Check MIC 1st pin(MIC_BIAS_1.8V)

= 1.8V ?

CheckC531 = High?

NO

NO

Change main PBA

YES YES

Change MIC Change MIC

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Sub MIC Working

Operate MIC

NG

PolluteMIC Hole?

YESClean upMIC hole

NO

CheckC512 = High?

NOChange main PBA

YES

Change MIC

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Stereo Headset Working

Hands-free stereoheadset

NG

YESCheck U508Button NG?

NO

CheckL501MIC NG?

NOYESCheck U508

YES

Resolder L501NO

Signal onin C516,C517?

SPK NG? Check L503, L504,EAR1

YESYES

NO

NO

Signal onin C408C409?

YESCheck R404, R405,

U615

The EndNO

Change Main PBA

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8-3-5. KEY Working

Volume KEY

Press Volume Key

NG

All key NG?YES Change Domesheet

Change Key FPCB

NO

Change KeyPad

Any key NG? Change Main PBA

END

NO

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Sub Key

Press Power Key,Other Sub Key

Power (END)Key NG?

YesPressing

power key,V500 = High?

YesCheck 8-3-1 Section

NO

Change Domesheet

Change Main PBA

NO

Sub KeyNG?

Change Domesheet

Change Main PBA

Yes

NO

The End

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8-3-6. Vibrator Working

Operate Vibrator

NO

Check

Vibrator SolderingResolder Vibrator

NO

Yes

VREG_VIB_3.3V

(C500) = 3.3V ?

Check PMIC (U615)

Change Main PBA

No

Yes

Change Main PBA

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8-3-7. T-Flash Card Working

Insert & OperatemicroSD card

NG

YESCD600break down ? Change CD600

NO

YESChange CD60012thPin of CD60

0= High ?

NO

4thPin of CD600= 3.0V ?

Check U615(PMIC)NO

YES

Change Main PBA

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8-3-8. SIM Card Working

ResolderU619

ChangeU615(PMIC)

YesCheckU619

SIM ConnectorBreak down?

NOChange SIM600

YES

No

Yes

U608= 3.0V

NG

Check SIM600& Neighboring Circuits

Insert & OperateSIM card

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Level 3 Repair

8-31

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336U

6

7GG

89GG

01

112 2

33 445 5

6

506U

006MIS

706U

506R

806U

D3

G

1

S2

V0.3_MISU_GERV

916U

LTC_RWP_TEF_MIU

TSR_MISKLC_MIS ATAD_MIS

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8-3-9 CAMERA Working

Operate CAMERA

NG

Camera FPCB connector is correctly

connecting?correctly connect

NO

Yes

C602 = 1.2V,C603 = 2.8VC604 = 2.8V

ChangeU615(PMIC)

NO

Yes

CAMERAReplace

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8-4-1. GSM850 RX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Resolder U101 or Change

Check Antenna contact

The End

Yes

Yes

Check C117 = -55dBm ?No

Replace PAM100

Yes

Normal conditionCatch the channel?

No

Yes

Continuous Rx ONRF Input : 190 CHAmplitude : -50dBm

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8-4-2. GSM900 RX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Continuous Rx ONRF Input : 62 CHAmplitude : -50dBm

The End

Check L102 >= -55 dBm?

Normal ConditionCatch the channel?

Yes

Yes

Yes

No

No

Check Antenna Contact

Resolder U101 or Change

Replace PAM100

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8-4-3. DCS/PCS RX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Check L106, L108>= -55 dBm?

Continous Rx ONRF Input : 698 CHAmplitude : -50dBm

The End

Normal ConditionCatch the channel?

Yes

Yes

Yes

No

No

Check Antenna Contact

Resolder U101 or Change

Replace PAM100

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8-4-4. WCDMA Band1 RX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Continous Rx ONRF Input : 10700CHAmplitude : -50dBm

The End

Check L109 = -65 dBm?

Normal ConditionCatch the channel?

Yes

Yes

Yes

No

No

Check Antenna Contact

Resolder U101 or Change

Replace PAM100

Check L112= -65 dBm? Replace DUF100No

Yes

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8-4-5. WCDMA Band8 RX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

The End

Check C131 = -65 dBm?

Normal ConditionCatch the channel?

Yes

Yes

Yes

No

No

Check Antenna Contact

Resolder U101 or Change

Replace PAM100

Check C135 = -65 dBm? Replace DUF101No

Yes

Continous Rx ONRF Input : 3013CHAmplitude : -50dBm

CONTINUOUS RX ON

RF INPUT : 3013CH

AMP : -50dBm

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8-4-6. GSM850/900 TX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Check U630 >= 13dBm?

Check PAM100 PIN26OUTPUT(RF CONN.)

With HP8960 >= 33dBm?

The End

Yes

Replace PAM100No

Tx ON (Level :5)Battery voltage:3.8V

Yes

Yes

NoCheck The U101

CONTINOUS TX ON CONDITIONTX POWER DAC:14500 CODE

APPLIEDGSM850 CH : 190GSM900 CH : 62

RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

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8-4-7. DCS/PCS TX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

CONTINOUS TX ON CONDITIONTX POWER DAC:14500 CODE

APPLIEDDCS CH : 698PCS CH : 661RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

Tx ON (Level :5)Battery voltage:3.8V

The End

Check U629 >= 11dBm?

Yes

Yes

Yes

No

Check PAM100 PIN26OUTPUT(RF CONN.)

With HP8960 >= 30dBm?

Check The U101

Replace PAM100No

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8-4-8. WCDMA Band1 TX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Tx ONBattery Voltage: 3.8V

CONTINOUS TX ON CONDITIONTX POWER DAC:120 CODE APPLIED

CH : 10700RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

The End

Check PAM100 PIN26OUTPUT(RF CONN.)

With HP8960 >= 23dBm?

Yes

Check L109 = 24 dBm ?

Check C126 = 26 dBm?

Check C144 = 8 dBm ?

Check C125 = 5 dBm?

Yes

Yes

Yes

No

No

Check the U101

Replace PAM100

Replace PAM101

No

No

No

Replace F102

Replace DUF100

Yes

Yes

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8-4-9. WCDMA Band8 TX

**If you check the tx chain,

Check the not only RF Device but also resistor, inductor and capacitor.

Check C131 = 24 dBm ?

Tx ONBattery Voltage: 3.8V

Check PAM100 PIN26OUTPUT(RF CONN.)

With HP8960 >= 23dBm?

The End

Check C145 = 8 dBm ?

Yes

Yes

NoCheck the U101

Replace PAM100

Replace PAM102Check C137 = 26 dBm?

No

No

No

Replace DUF101

Yes

Yes

Yes

CONTINOUS TX ON CONDITIONTX POWER DAC:120 CODE APPLIED

CH : 3013RBW : 100KHzVBW : 100KHzSPAN : 10MHz

REF LEV. : 10dBmATT. : 20dB

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8-48

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8-4-10. BLUETOOTH

Bluetooth connection disable

Yes

Check BT functionON Enable BT function

No

Yes

Check the voltageof U201 is around 3.

0V

NoCheck U201 and change

Check 26KHz Clockon U202 (J1)

Yes

Check OSC200No

Yes

Check theassembled status of

ANT200

NoExchange ANT200

Yes

ExchangeNo

Check UCP300

Yes

END

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8-4-11. FM RADIO

Radio does not work

Yes

Check C200

and Check U615

NoC200 2.6V

Yes

C216, 217 is OK?(When U201

operate)

No Resolder C216,C217and check U201

Yes

Check signalrelated to U201

Yes

END

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8-53

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8-4-12. GPS

Operate GPS

Yes

NoReplace UCP300Check C203 = High ?

Yes

NoReplace U200Check R200 >= -53dBm?

Yes

The End

Check ANT201, C211Abnormal

Resolder ANT201, C211

Normal

GPS Signal Input: -50dBm@C211

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10

2T

NA

C203

C206 C210

C211

C213

C502

30

5C

HDC600

L202

L601

R200

R201

10

5RR525

U200

10

5U

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8-5. Service Schematics

- NC Point(Top View)： : NC

UME300 b b b b b b b b b b b b

b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 b

A ． ． ： ． ． ． ． ． ． ． ． ． ． ． b

B ． ． ． ： ． ． ． ． ． ． ． ． ． ． b

C ． ： ． ． ． ． ． ． ． ． ． ． ． ． b

D ． ． ． ． ． ． ． b

E ． ． ． ． ： ： ． ： ： ． ． ． b

F ． ． ． ． ： ． ． ． b

G ． ． ． ． ： ． ． ． b

H ． ． ． ． ． ． ． ． b

J ． ． ． ． ． ． ． ． b

K ． ． ． ． ． ． ． ． ． ． ． ． b

L ． ． ． b b b b ． ． ． b

M ． ． ： ． ． ． ． ． ． ． ． ． ． ． b

N ． ． ． ． ． ． ． ． ． ． ． ． ． ． b

P ． ． ． ． ． ． ． ． ． ． ． ． ． ． b

b b b b b b b b b b b b b b

U401 b b b b b b b b b b b

b 1 2 3 4 5 6 7 8 9 10 11 b

A ： ． ． ． ． ． ． ． ． ． ： b

B ． ． ． ． ． ． ． ． ． ． ． b

C ． ． ． ． ． ． ． ． ． ． ． b

D ． ． ． ． ． ． ． ． ． ． ． b

E ． ． ． ． ． ． ． ． ． ： ． b

F ． ． ． ： ． ． ． ． ． ： ． b

G ． ． ． ： ： ： ． ． ． ． ． b

H ： ． ． ． ： ： ． ． ． ． ． b

J ． ． ． ． ． ． ． ． ． ． ． b

K ： ． ． ． ． ． ． ． ． ． ： b

b b b b b b b b b b b b b

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Level 3 Repair

8-58

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UCP300

b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

A ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： A

B ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： B

C ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： C

D ： ． ． ． ． ： D

E ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： E

F ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： F

G ： ． ． ． ． ． ． ． ． ： G

H ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： H

J ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： J

K ： ． ． ． ． ． ． ． ． ． ． ． ． ： K

L ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： L

M ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： M

N ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： N

P ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： P

R ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： R

T ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： T

U ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： U

V ： ． ． ． ． ． ． ． ． ． ． ． ． ： V

W ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： W

Y ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： Y

AA ： ． ． ． ． ． ． ． ． ： AA

AB ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： AB

AC ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： AC

AD ： ． ． ． ． ： AD

AE ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： AE

AF ： ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ． ： AF

AG ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： ： AG

b 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 b